šŸ”„šŸ”„ Donā€™t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

šŸ”
BS EN 60794-4-20:2012:2013 Edition

BS EN 60794-4-20:2012:2013 Edition

$167.15

Optical fibre cables – Aerial optical cables along electrical power lines. Family specification for ADSS (All Dielectric Self Supported) optical cables

Published By Publication Date Number of Pages
BSI 2013 37
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. Weā€™re here to assist you 24/7.
Email:[email protected]

This part of IEC 60794, which is a family specification, covers optical telecommunication cables, commonly with single-mode fibres to be used primarily in overhead power lines applications. The cable may also be used in other overhead utility networks, such as for telephony or TV services. Requirements of the sectional specification IEC 60794-4 for aerial optical cables along electrical power lines are applicable to cables covered by this standard.

NOTE In some particular situations in the electrical industry, short overhead links can be also designed with multimode fibres.

The ADSS cable consists of single-mode optical fibres contained in one or more protective dielectric fibre optic units surrounded by or attached to suitable dielectric strength members and sheaths. The cable does not contain metallic components. An ADSS cable is designed to meet the optical and mechanical requirements under different types of installation, operating and environmental conditions and loading, as described in Annex B.

This standard covers the construction, mechanical, electrical, and optical performance, installation guidelines, acceptance criteria, test requirements, environmental considerations, and accessories compatibility for an all dielectric, self-supporting fibre optic (ADSS) cable. The standard provides both construction and performance requirements that ensure, within the guidelines of this standard, that the mechanical capabilities of the cable components and maintenance of optical fibre integrity and optical transmissions are proper.

This standard excludes any ā€œlashedā€ or ā€œwrappedā€ OPAC cables.

Cables intended for installation in conformity with ISO/IEC 24702 and related standards may require the specification of additional tests to ensure their suitability in the applicable environments defined by the mechanical, ingress, climatic and chemical, and electromagnetic (MICE) classification. These tests are outside of the scope of IEC 60794 cable specifications, and MICE criteria are not part of the requirements for IEC 60794 specifications. The MICE tests may be the same as, similar to, or substantially different from, the tests required by IEC 60794 specifications. Cables manufactured per IEC 60794 specifications may or may not meet the MICE criteria. For supplemental discussion, see IEC/TR 62362.

PDF Catalog

PDF Pages PDF Title
6 CONTENTS
8 1 Scope
2 Normative references
9 3 Terms, definitions and abbreviations
11 4 Optical fibres
4.1 General
4.2 Attenuation
4.2.1 Attenuation coefficient
4.2.2 Attenuation discontinuities
4.3 Cut-off wavelength of cabled fibre
4.4 Fibre colouring
4.5 Polarisation mode dispersion (PMD)
5 Cable elements
12 6 Optical fibre cable constructions
6.1 General
6.2 Optical unit
6.3 Cable protection elements
13 7 Main requirements for installation and operating conditions
8 Cable design considerations
Table 1 ā€“ Cable design characteristics
14 9 Cable tests
9.1 General
9.2 Classification of tests
9.2.1 Type tests
Table 2 ā€“ Optional parameters (if required by customer)
15 9.2.2 Factory acceptance tests
9.2.3 Routine tests
9.3 Tensile performance
9.3.1 General
9.3.2 Maximum allowed tension (MAT)
9.4 Installation capability
9.4.1 General
9.4.2 Sheave test
16 9.4.3 Repeated bending
9.4.4 Impact
17 9.4.5 Crush
9.4.6 Kink
9.4.7 Torsion
18 9.5 Vibration testing
9.5.1 Aeolian vibration test
9.5.2 Low frequency vibration test (galloping test)
19 9.6 Temperature cycling
20 9.7 Water penetration
9.8 Weathering resistance
9.9 Tracking and erosion resistance test
21 9.10 Creep behaviour
9.11 Fitting compatibility
10 Factory acceptance tests
11 Routine tests
22 12 Quality assurance
23 Annex A (informative) Packaging and marking
24 Annex B (informative) Installation considerations for ADSS cables
25 Annex C (informative) Electrical test (TRACKING)
C.1 General
C.2 Option C1 ā€“ Sheath material qualification
C.2.1 Overview
C.2.2 Test arrangements
26 C.2.3 Test procedure
C.2.4 Requirements
C.3 Option C2 ā€“ Example of test for Sahara desert conditions
C.3.1 Overview
C.3.2 Test arrangement
27 C.3.3 Sample preparation
Figure C.1 ā€“ Draft of test equipment
Figure C.2 ā€“ Test chamber
28 C.3.3.1 ā€œNormalā€ environment
C.3.3.2 Desert-like environment
C.3.4 Test procedure
C.3.5 Requirements
C.4 Option C3 ā€“ Pollution level and tracking resistance
C.4.1 Overview
29 C.4.2 Test set up
Figure C.3 ā€“ Electric scheme for the test
Figure C.4 ā€“ Details of the sample
30 Figure C.5 ā€“ Nozzle
31 C.4.3 Test method
C.4.4 Overview of pollution model and electrical test
Figure C.6 ā€“ Details for the spraying
Table C.1 ā€“ Req and Ceq values for different pollution index values
32 Figure C.7 ā€“ Pollution model
Figure C.8 ā€“ Basic circuit for arcing test
33 Annex D (informative) All Dielectric Self-Supported (ADSS) cables to be used in overhead power lines (Blank detail specification)
Table D.1 ā€“ Blank detail specification
35 Bibliography

Related products

BS EN 60794-4-20:2012
$167.15